Train your way.
Pay your way.

Four steps:

1. Pick your pack. Click any pack above and complete checkout.

2. Create your account. Your first time buying a pack, during checkout, click "Sign Up" at the top right of the page to create an account. Use the same email you'll use for classes. This keeps your pack linked to you and makes future bookings easier.

3. Check your email. You'll get a confirmation from "Acuity" or "Jai Su Studio" with a "Schedule" link. Save this email. That link is your booking shortcut for every class going forward.

4. Click "Schedule." The calendar opens with your pack already applied. Pick a class, confirm. Want recurring slots or all your classes at once? Click "Select and make recurring" or "Select and add another time" to lock in different classes on different days, all in one go.

No. Buying a pack gives you access. You still need to reserve a spot in the class calendar through your account, same way as a drop-in. Spots are limited per class, so reserve early. Same goes for subscriptions. Unlimited access, but you still book the days you want to come.

No. The "Schedule" link in your confirmation email lets you book classes without needing to log in. Just click the link, pick a class, done. Your pack stays linked to that email automatically.

First, search your inbox (and spam) for "Acuity" or "Jai Su Studio". That's where it'll be from. If you can't find it, contact us and we'll resend it.

If you really need to book without it, go to our booking platform. From the top-right corner, click "Sign Up" if it's your first time (use the same email you bought your pack with) or "Log In" if you already have an account. Once logged in, find your code in the account menu and apply it at checkout. The email link is much easier. That's the recommended way.

When booking, pick a date and time, then click "Select and make recurring" or "Select and add another time". You can stack multiple weekly slots in one go: different classes, different days, however your week looks. By the end you'll have a full list of bookings. Click Continue and they all confirm at once.

Need to skip a week? Cancel any individual session from your account.

No. Packs and subscriptions are linked to a single account and a single person. We do this to keep classes fair, make sure everyone gets a spot, and keep our records clean. If a friend wants to come along, they can drop in for €15 or grab their own pack.

Cancel through your account at least 8 hours before the class starts. Your spot is released with no penalty. Late cancellations and no-shows count as a class used. Pack users see one class deducted. Subscription users lose that day's slot.

Subscriptions can be cancelled anytime from your account. Cosmic Voyager runs month to month until you cancel on the booking platform Acuity. When you do, you keep access until the end of the current cycle. No further charges. Class packs and one-time payments (Jupiter, Galaxy, Builder, Transformation) are non-refundable once purchased.

Yes. Jupiter (10 classes) is valid for 3 months from purchase. Galaxy (20 classes) is valid for 6 months. The unlimited packs (Builder, Transformation) run for their stated period (2 or 3 months) from purchase. Cosmic Voyager renews monthly until you cancel.

Be honest about how often you'll really show up. Once a week or less? Jupiter or Galaxy are the right fit. Twice a week or more, but want flexibility to stop anytime? Cosmic Voyager. Know you're committing for the season? The Builder or Transformation get you the lowest per-class price.

Yes. The Eight Limbs Gift is 8 outdoor Muay Thai classes for €100, valid for 3 months from first use. Sunrise, sunset, or weekend. The recipient picks their own classes. Buy a gift here.

If you want more classes or something more custom, contact us and we'll set it up for you.